Nut and bolt lock.



P. BRUNER.

NUT AND BOLT LOCK.

APPLICATION FILED APR.20, 1911.

1 036,069, Patented Aug. 20, 1912.

7 1 13.1. F vx UNITED STATES PATENT OF ICE- Pram? BRUNER, or BOISE,IDAHO.

' NUT AND BOLT LOCK.

To all 'w/urm. it may concern:

Be it known that I, Pnnar Batman, acitizen of the United States,residing at Boise, in the county of Ada and State of Idaho, haveinvented certain new and useful Improvements in Nut and Bolt Locks; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to nut and bolt looks and morepartieularly'tothat class ofnut and bolt locks known-as washer nut andbolt locks. 1

An object of the invention'is to provide a Washer nut and bolt lockwhich may be applied toany out and holtin use and whichlnay be usedwherever there isspace enough for the bolt or nut to turn.

Another object of the invention is to provide a washer nut and bolt.lock of sinnple constructiorl, which may be manufactured at a'cost notto exceed the cost of manufacturing the ordinary washer.

Another object is to provide a washer nut and bolt lock which may bemanufactured with the same dies now employed to manufacture the ordinarywasher by simply al-.

tering the face of thedics to formslots in and near the edge of saidwasher.

Another object is to provide a nut and bolt lock of this el1:u'acter,.\vhich' may be applied either to the nut or bolt head and whichwillJlcck the nut or bolt head, to which it is applied, against rotationand may also be locked in engagement. with the adjacent surface toprevent the washer itself from rotating.

Another object is to provide a nut and boltlock of the above statedcharacter, \\hich may be employed upon rail joints, machinery, bothlarge and small, wagons, etc., and intact, wherever bolts and nuts areused, and,

Another object is to provide a nut and bolt lock of this nature. whichmay be cmyed to lock the bolt or nut in any posin Without having torotate the nut or i. t one-half or one-fourth of a revolution.

Other objects and advantages will be hereinafter set forth and pointedout in the specification and. claim.

in the accompanying drawings which are made a part of this application,Figure 1. shows my improved washer nut and bolt.

Specification of Letters Patent. Application filed April 20, 1911.Serial No. 622,347.

, Patented Aug. 0, 1912:

lock employed to lock both the head of. the bolt and the nut upon theopposite end of the bolt, the bolt being hown as emp oyed for boltingtogether two blocks. Fig. 2 is a side elevation at right angles to Fig.1, showing the washer before the prongs thereof have been bent to lockthe nut and washer against rotation. Fig. 3Ris a detail view of thewasher. Fig. 4 is an edge view '65 of the washer, and Fig. 5' is a viewsimilar to Fig. 42, showing the opposite locking prongs bentinopposited-irections, as indicated in Fig. 1.

Referring to the drawings in which similar reference numerals designateoorre spending parts throughout the several views, 1 shows the washer,which is preferably in circular form, but may be, if desired, madesquare or any other shape. The washer is provided at intervals alongitscdge withslots at right angles. forming opposite prongs 2 and 3. Asillustrated, the washer is provided with three sets of slots,

forming three prongs No. 2 and a. similan number of prongs No. 3. Thenumber of slots, however, is not essential as any number may beprovided, the essential feature being the positioning of the slots atright angles to'one another to form the 'prongs 2 and 3, the slots beingcontinued to'thc edge of the washer, cutting away asmall triangularportion at the junction of'thc slots, making it'casier to operate uponthe ends of the prongs .2 and 3. ea As shown'in the drawings, the washeris placed under the bolt head t, or the nut 5.' If desired, the washersmay be used for both the head of the bolt and the nut upon the oppositeend of the bolt, or it may be used 9?- for only one of these purposes.the other end of the securing device being held against rotation bybeing countersunk in the work,

'or other material. 'The nut 5 is screwed ti ghtly upon the bolt 6, todraw the pieces of 10a work 7 closely together and the head 4 of thebolt against the washer 1. or the work 7 as the case may be.

The nut .is rotated until one of its corners is directly over one of thesets of slots. which should occur in such numbers as to make itnecessary to only rotate the not 5 a short distance to bring one of itscorners over one of the sets of slots. When the bolt is in properposition, the prong 2. adjaccnt the above mentioned corner, is bentupwardly against the side of the bolt to prevent the latter fromrotating in either direction. The prong 3 is then forced into the workor adjacent material. This will prevent any rotation of the washer. Thusit will be seen that it will be impossible for either the washer or thelocking nut to retate in any direction and that they will be securelylocked together, as well as being locked to the work or material throughwhich the bolt is secured.

If one of the locking washers is used .for the head of the bolt, theprongs are bent in the same manner as described in connection with thenut, locking the bolt in a similar portion fitting within a similarlyshaped opening in the material.

It will be readily seen that the above described nut and bolt lockingwasher may be 'manufactured at the same price asthe ordinary washer, onaccount of the only change or alteration bein'gthe slots within thematerial, said locking washer thereby requiring. no more material thanthe ordinary washer. It will also be seen that this washer may be usedwherever a bolt and nut is used for the reason that it requires no morespace than does the nut, and the prongs of said washer A may be easilybent, as above descrlbed, by

any ordinary tool employed for such purposes without the necessity ofreaching the washer with the head of a hammer or other means to poundupon said prongs. It Will also be evident to persons familiar with suchdevices, that the dies now employed for manufacturing the ordinarywasher may be altered to cut'the slots, as above described,

to produce my nut and bolt locking washer. Thus, it will be unnecessaryto incur an extra expense of making special dies to manufacture theherein described washer. This washer may be used upon any machinery,

either large or small, at railway crossings, and upon vehicles and infact wherever bolts and nuts, or similar securing devices, are employed.

What I claim is:

A nut or bolt lo king means, comprising a washer having triangularlyarranged right angled slots at intervals extending inwardly from itsedge to form angularly disposed prongs one of said prongs to be bentagainst the side of the bolt head or nut while the adjacent prong is tobeforced into the adjacent material to lock said washer and nut againstrotation.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

'PHIL. BRUNER.

-Witnesses: a

L. H. Cox, v E. W. CUFF.

